Collapsible stereoscope.



PATENTED NOV. 8, 1904.

S. HERMANN.

GOLLAPSIBLE STEREOSUOPE.

APPLIOATION FILED DEG. 4, 1992.

NO MODEL.

19k (immer- IINirso STATES Patented November 8, 1904.

ATENT FFICE.

COLLAPSIBLE STEREOSCOPE.

SPECIFICATION forming part of Letters Patent No. 774,245, dated. November 8, 1904. Application filed December 4, 1902. axial No. 133,807. (No model.)

To (LIZ- whom, it In/cry concern:

Be itknown that I, SAMUEL HERMANN, a citizen of the United States of America, and a resident of Cincinnati, county of Hamilton, State of Ohio, have invented certain new and useful Improvements in Collapsible Stereoscopes, of which the following is a specification.

The object of my invention is a stereoscope which may when not in use be folded up so as to occupy comparatively little space and which may be quickly opened out and braced open in position for use.

In the accompanying drawings an illustration is given of a stereoscope embodying my invention.

Figure 1 is a side elevation of my stereoscope in position for use. Fig. 2 is an end elevation of the same, the dotted lines showing the closed position of one of the hoods. Fig. 3 is a plan view of the same. Fig. 1 is a detail view of a modified formof the hood.

Referring to the parts, the frame of the stereoscope embodying my invention consists of two plates A and B, hinged together so as to be capable of a rotation from a position lying flat together to a position at ninety degrees apart. In this position they may be braced apart by a brace-arm o, pivoted to plate B, engaging a stop or ridge (0 upon plate A.

Plate A has struck down from it three straps a, forming .a way for a sliding arm O, which at its forward end has a hinged support 0 for holding the stereoscopic picture M. To one of the straps a is secured aspring which presses upward against arm O to hold it in any desired position. Plate B supports lenses l) D and has upon its front two dividing-strips 7/ and 5 which divide the angle of vision, plate A having perforations a and (0*, through which the strips 6 and 71 project when the plate B is folded down upon plate A by the release of brace-arm b.

Upon the ends of plate B are hinged hoods I)" and 6* in positions such that they may be swung down to protect the lenses when the parts are folded together, as shown in dotted lines in Fig. 2 and Fig. 3. In Fig. A is illustrated a modified form of hood which consists of three parts If, 6, and b telescoped together, so that in use they may be spread apart, as shown in Fig. 4:, and when not in use may be pushed together, so as to occupy little space.

Plate A has upon its under side at the rear end a downwardprojecting bracket a, to which is pivoted a handle E, so as to be capable of rotation upward and forward against the under side of plate A. The upper ends (a of the handle are cam-shaped, as shown in Fig. 1, dotted lines, so that when the arm is swung down to its vertical position the cam contacts bracket a to hold the arm firmly in this vertical position.

Arm E is made in the'shape of a hollow frame, between the sides of which a pin E is supported. Upon pin E is a leg F, which has an elongated slot f in its side to engage the pin, so that the leg may project forward, as shown in Fig. 1, to act as a support, so that the frame of the stereoscope will stand upright without other support and that when it is desired to fold up the device arm F may be pushed backward and upward so as .to fit within frame E, as shown in Fig. 2 and Fig. 5.

It is seen that when it is desired to ship a stereoscope of my invention it may be folded into a small space by turning picture-support I 0 down upon its arm C, pushing armO inward so as lie beneath plate A, turning plates B and arm E downward and upward so as to lie in planes substantially together to the plate A, and by turning the hoods b and 6* down over the lenses, all as illustrated in Fig. 5.

hat I claim is 1. A frame of a stereoscope consisting of two plates hinged together, so as to be capable of a rotation from a position lying fiat upon each other to a position at substantially right angles thereto, one plate supporting the stereoscopic lenses, and a dividing-strip between them, the other plate having a support for stereoscopic pictures, and a perforation therein for the reception of the dividingstrip of the former plate when in a fiat position, and an arm hinged to the latter plate to be capable of a rotation from a position fiat upon it, downward at an angle thereto to form a handle, substantially as shown and described.

2. A frame for a stereoscope consisting of two plates hinged together so as to lie flat upon each other, or, to stand at right angles thereto, means for bracing them apart, one of the said plates supporting stereoscopic lenses, the other having a picture-support, a handle hinged to the under side of the latter plate, so as to be capable of a rotation from a position parallel to the same, down at an angle thereto, and a leg coupled to said handle, so as to be capable of being projected forward to form the support for holding the frame in an upright position and to be carried in a position flat against the handle, substantially as shown and described.

3. A frame for a stereoscope consisting of two plates hinged together, so as to be capable of a position flat upon each other, or one at substantially right angles to each other, means for bracing them apart, one of said plates supporting stereoscopic lenses, collapsible hoods supported by the plate adjacent to the lenses, a sliding arm upon the second plate for supporting stereoscopic pictures, a handle pivoted to the under side of the secend plate so as to be capable of a rotation from a position parallel to the plate to a position at right angles thereto, a leg coupled to said handle, so as to be capable of being projected forward to form a support for holding the frame in an upright position, or of being folded flat against the handle, substantially as shown and described.

4. In a stereoscope the frame-piece, a lensholder hinged upon one end thereof and adapted either to stand at right angles to the framepiece or to lie flat thereon, an extensible pictu re-holder sliding in ways in the frame-piece, a handle hinged to the under side of the framepiece and capable of moving through a right angle so as either to lie against the under piece of the frame, or extend at right angles thereto, an extension-arm secured to said handle to serve as a standing support for the frame, substantially as shown and described.

SAMUEL HERMANN.

Vitnesses:

H. M. LITTLE, O. F. KETTENBERG. 

